Automobile wheel
AssigneeCentral Motor Wheel Co., Ltd.
InventorYoshifumi Goto
Life of this patent
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Abstract
In an automobile wheel, a disc flange of a wheel disc includes bent surface-side edge portions each having an arcuate shape and arranged concentrically with each other, and the bent surface-side edge portions extend from the surface-side end edge of a fitted straight annular portion to be bent radially inward and are dented to a back side of the outer end portions of the lateral edge portions of spokes. The thus configured automobile wheel can exhibit high strength and rigidity against a radial load, a bending load, and a torsional load because of the shape of the bent surface-side edge portions, thereby suppressing deformation of the disc flange caused while an automobile is running. Thus, it is possible to mitigate a stress concentration on a joined portion between the wheel disc and a wheel rim.
Claims3
An automobile wheel comprising:
- a wheel rim including:
- surface-side and back-side bead seats that support beads of a tire, and
- a well provided between the surface-side and back-side bead seats and dented inward;
- and
- a wheel disc including:
- a generally circular hub mounting portion that is to be coupled to a hub of an axle,
- an annular disc flange fitted inside the well of the wheel rim,
- a plurality of spokes that couple the hub mounting portion and the disc flange to each other, and
- ornamental holes defined by adjacent spokes and the disc flange,
- wherein the disc flange of the wheel disc includes:
- a fitted straight annular portion fitted with the well of the wheel rim, and
- bent surface-side edge portions each having an arcuate shape and arranged concentrically with each other, the bent surface-side edge portions extending from the fitted straight annular portion to be bent radially inward and being dented to a back side of outer end portions of lateral edge portions of the spokes.
Dependencies are inferred from the claim text.